Ashton's reality 'Fountain'

He punks celebrities. He spoofs reality dating shows. Now he's taking on the only unscripted show good enough to win three Emmy awards--"The Amazing Race."

Ashton and his producing partner have signed a deal with the WB to air "Fountain of Youth," Entertainment Weekly reports. The show will feature a cross-country race among eight teams of two people--a college senior and a senior citizen.